Matching a deep vee Duckworth 21 2011 against a modified vee Duckworth 723 2010 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
On paper these two are close siblings in the size department — Duckworth 21 2011 at 21,0 ft versus Duckworth 723 2010 at 23,0 ft. At 28 lbs and 17 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The Duckworth 723 2010 tops out at 250 hp. Engine specs for the Duckworth 21 2011 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Duckworth 21 2011 carries 62 gallons versus 42 gallons in the Duckworth 723 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Duckworth 723 2010 is rated for 7 passengers, while the Duckworth 21 2011 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth 723 2010 could be the deciding factor.
Bottom line: Choose the Duckworth 723 2010 if your priority is putting more people on the water — it handles 7 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Duckworth 21 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.